Keep your power steering fluid contained and ready for the pump with this Dorman power steering reservoir, part number 603-854. It is a complete assembly with both the reservoir and its cap. It fits many vehicles, among them the 2009-2017 Chevrolet Traverse, 2009-2017 GMC Acadia and 2011-2017 Buick Enclave.
This replacement fluid reservoir is made from quality materials to handle the stresses of underhood heat and engine vibration. It has been thoroughly tested for proper fit on specific vehicle applications. If a cracked or leaking reservoir or a worn cap is the problem, this unit replaces both pieces at once. It works as a direct-fit power steering reservoir for the 2011-2017 Buick Enclave and for the other listed applications.
- Direct replacement: built to fit and work like the original equipment reservoir, for a trouble-free installation.
- Complete assembly: includes the reservoir and the reservoir cap.
- Reliable performance: made to stand up to excessive heat and vibration.
- Quality tested: put through on-vehicle testing for a quality fit and long service life.
Signs a reservoir may need replacing include visible cracks, fluid seeping from the tank or cap, a cap that no longer seals, or a fluid level that keeps dropping. Hoses or the pump can also cause a leak, so confirm the source before replacing parts. See the "Vehicles it fits" section for the full list of vehicles and engine details.
Interchange: 3R-401
3R401 · 25879975 · 20795354 · GM4542103 · 9930019
This part cross-references / interchanges with the following part numbers:
3R-401, 25879975, 20795354, GM4542103, 9930019
Frequently Asked Questions
What does a power steering reservoir do?
It holds the power steering fluid supply for the system and feeds it to the pump, and the cap closes off the fill opening. The Dorman 603-854 replaces both the reservoir and the cap.
What is included with the Dorman 603-854?
It is a complete assembly that includes the power steering fluid reservoir and the reservoir cap.
Is this the right GMC Acadia power steering reservoir for a 2009-2017 GMC Acadia?
Yes. It is a direct-fit replacement for the 2009-2017 GMC Acadia, and it also fits the 2009-2017 Chevrolet Traverse and 2011-2017 Buick Enclave. Check the "Vehicles it fits" section for your exact vehicle.
What are signs my power steering reservoir may need replacing?
Common signs are cracks in the tank, fluid seeping from the reservoir or cap, a cap that won't seal, or a fluid level that keeps dropping. Confirm the leak source first, since hoses or the pump can also leak.
Is the Dorman 603-854 built to handle engine-bay conditions?
Dorman makes it from quality materials to withstand underhood heat and engine vibration, and the part has undergone on-vehicle testing for fit.
